Ключевые слова: asian, audiences, business, busy, caucasian, chair, classroom, closeup, colleagues, communication, computer, conference, corporate, education, finger, fingers, hand, hands, human, information, innovation, internet, job, keyboard, laptop, learn, lecture, mobile, network, occupation, office, pc, people, person, seminar, seminars, session, sitting, student, studying, technology, training, type, typing, unrecognized, using, work, working,